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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| package core | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "io" | ||
| "regexp" | ||
| ) | ||
|
|
||
| var markdownLinkRegex = regexp.MustCompile(`\[\s*(\S.*?)\s*\]\(`) | ||
|
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| func CleanupMarkdownLinks(r io.Reader, w io.Writer) error { | ||
| buf, err := io.ReadAll(r) | ||
| if err != nil { | ||
| return fmt.Errorf("CleanupMarkdownLinks: failed to read input: %w", err) | ||
| } | ||
|
|
||
| cleaned := markdownLinkRegex.ReplaceAllFunc(buf, func(match []byte) []byte { | ||
| return markdownLinkRegex.ReplaceAll(match, []byte("[$1](")) | ||
| }) | ||
|
|
||
| _, err = w.Write(cleaned) | ||
| if err != nil { | ||
| return fmt.Errorf("CleanupMarkdownLinks: failed to write output: %w", err) | ||
| } | ||
|
|
||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,131 @@ | ||
| package core | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "errors" | ||
| "strings" | ||
| "testing" | ||
|
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| "github.com/google/go-cmp/cmp" | ||
| ) | ||
|
|
||
| func TestCleanupMarkdownLinks(t *testing.T) { | ||
| testCases := []struct { | ||
| name string | ||
| input string | ||
| expected string | ||
| }{ | ||
| { | ||
| name: "No links", | ||
| input: ` | ||
| This is some text. | ||
| This more text. | ||
| Here is a link https://google.com. | ||
| `, | ||
| expected: ` | ||
| This is some text. | ||
| This more text. | ||
| Here is a link https://google.com. | ||
| `, | ||
| }, | ||
| { | ||
| name: "Single link with extra space", | ||
| input: ` | ||
| [ Google](https://google.com) | ||
| This is some text | ||
| [ | ||
| Managing 100s of Kubernetes Clusters using Cluster API](https://techblog.citystoragesystems.com/p/managing-100s-of-kubernetes-clusters "Managing 100s of Kubernetes Clusters using Cluster API") | ||
| This more text. | ||
| Here is a link https://google.com. | ||
| `, | ||
| expected: ` | ||
| [Google](https://google.com) | ||
| This is some text | ||
| [Managing 100s of Kubernetes Clusters using Cluster API](https://techblog.citystoragesystems.com/p/managing-100s-of-kubernetes-clusters "Managing 100s of Kubernetes Clusters using Cluster API") | ||
| This more text. | ||
| Here is a link https://google.com. | ||
| `, | ||
| }, | ||
| { | ||
| name: "Multiple links with extra space", | ||
| input: ` | ||
| [Google](https://google.com) | ||
| This is some text | ||
| [ | ||
| Managing 100s of Kubernetes Clusters using Cluster API](https://techblog.citystoragesystems.com/p/managing-100s-of-kubernetes-clusters "Managing 100s of Kubernetes Clusters using Cluster API") | ||
| This more text. | ||
| [ | ||
| Another link with space](https://example.com) | ||
| Here is a link https://google.com. | ||
| `, | ||
| expected: ` | ||
| [Google](https://google.com) | ||
| This is some text | ||
| [Managing 100s of Kubernetes Clusters using Cluster API](https://techblog.citystoragesystems.com/p/managing-100s-of-kubernetes-clusters "Managing 100s of Kubernetes Clusters using Cluster API") | ||
| This more text. | ||
| [Another link with space](https://example.com) | ||
| Here is a link https://google.com. | ||
| `, | ||
| }, | ||
| } | ||
| for _, tc := range testCases { | ||
| t.Run(tc.name, func(t *testing.T) { | ||
| input := strings.NewReader(tc.input) | ||
| var output bytes.Buffer | ||
| err := CleanupMarkdownLinks(input, &output) | ||
| if err != nil { | ||
| t.Fatalf("Unexpected error: %v", err) | ||
| } | ||
| result := output.String() | ||
| if diff := cmp.Diff(tc.expected, result); diff != "" { | ||
| t.Errorf("Unexpected result (-want +got):\n%s", diff) | ||
| } | ||
| }) | ||
| } | ||
| } | ||
|
|
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| func TestCleanupMarkdownLinksErrors(t *testing.T) { | ||
| t.Run("Read error", func(t *testing.T) { | ||
| errReader := &errorReader{err: errors.New("read error")} | ||
| var output bytes.Buffer | ||
| err := CleanupMarkdownLinks(errReader, &output) | ||
| if err == nil { | ||
| t.Fatal("Expected an error, got nil") | ||
| } | ||
| if !strings.Contains(err.Error(), "CleanupMarkdownLinks: failed to read input: read error") { | ||
| t.Errorf("Unexpected error message: %v", err) | ||
| } | ||
| }) | ||
|
|
||
| t.Run("Write error", func(t *testing.T) { | ||
| input := strings.NewReader("some input") | ||
| errWriter := &errorWriter{err: errors.New("write error")} | ||
| err := CleanupMarkdownLinks(input, errWriter) | ||
| if err == nil { | ||
| t.Fatal("Expected an error, got nil") | ||
| } | ||
| if !strings.Contains(err.Error(), "CleanupMarkdownLinks: failed to write output: write error") { | ||
| t.Errorf("Unexpected error message: %v", err) | ||
| } | ||
| }) | ||
| } | ||
|
|
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| type errorReader struct { | ||
| err error | ||
| } | ||
|
|
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| func (e *errorReader) Read(p []byte) (n int, err error) { | ||
| return 0, e.err | ||
| } | ||
|
|
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| type errorWriter struct { | ||
| err error | ||
| } | ||
|
|
||
| func (e *errorWriter) Write(p []byte) (n int, err error) { | ||
| return 0, e.err | ||
| } |
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